P4P lens analysis thread

[Dronefriend]

This is a thread where we can help analyze the quality of our lenses. It is mainly for people like myself, who are not sure how to evaluate our lenses.

Please provide a picture of a focus chart or a highly detailed, well lit surface if posting.

This is a full resolution .png shot with 3:2 from my P4P. I see some degradation in the corners, especially the upper corners. I also see some CA. The gimbal is tilting up in this shot, which might be the reason for slightly lower quality in the upper corners.

Dropbox - DJI_0070.png

I don't know if this is 'acceptable' quality or not. What do you think?
Focus was set using Manual at lowest setting, about 1 meter from the chart.

I hope this thread will provide a good source of information for all of us.

 

[ianwood]

In order to get the most accurate results, you should square up with the chart so that it is a uniform distance from the camera. Also, you will want neutral light across the entire frame. Ensuring you have the optimal focus is critical too.

 

[smiller]

It should be remembered how tight the constraints are for size/weight of the lens and given this there will almost certainly be detectable aberrations of some kind.

 

[Dronefriend]

It should be remembered how tight the constraints are for size/weight of the lens and given this there will almost certainly be detectable aberrations of some kind.

Of course, but it is good in regard to this or not?

I will post an update with proper angle later.